唯一的旅程是内心的旅程。

君子的为人之道是：外表暗淡无色而美德日见彰显。小人的为人之道是：外表色彩鲜明，但渐渐地消失了。君子的为人之道还在于：外表素淡而不使人厌恶，简朴而有文采，温和而又有条理，知道远是从近开始的，知道教化别人从自己做起，知道隐微的东西会逐渐显露，这样就进入圣人的美德中了。

The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.

【释义】走一百里路，走了九十里才算是一半。

"Sometimes the smallest things take up the most room in your heart."

Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.